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68682006754 = 234341003377
BaseRepresentation
bin111111111101110001…
…000100000011100010
320120021120022110000221
4333331301010003202
52111130043204004
651315125433254
74651001265514
oct777561040342
9216246273027
1068682006754
1127145225259
121138956b82a
13662737c7aa
14347796dbb4
151bbea69354
hexffdc440e2

68682006754 has 4 divisors (see below), whose sum is σ = 103023010134. Its totient is φ = 34341003376.

The previous prime is 68682006739. The next prime is 68682006821. The reversal of 68682006754 is 45760028686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45760028686 = 222880014343.

It can be written as a sum of positive squares in only one way, i.e., 55120239729 + 13561767025 = 234777^2 + 116455^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17170501687 + ... + 17170501690.

Almost surely, 268682006754 is an apocalyptic number.

68682006754 is a deficient number, since it is larger than the sum of its proper divisors (34341003380).

68682006754 is a wasteful number, since it uses less digits than its factorization.

68682006754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34341003379.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 68682006754 in words is "sixty-eight billion, six hundred eighty-two million, six thousand, seven hundred fifty-four".

Divisors: 1 2 34341003377 68682006754